Port 3494IBM 3494 Tape Library Manager

IBM 3494 tape-library control traffic between host systems and the library manager.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

Technical Details

what runs on :3494

The assignment identifies IBM 3494, an automated tape-library system. The port is used for host-to-library-manager control communication; it is not the transfer path for data written to or read from tape, which uses the tape-drive connections. IANA lists both TCP and UDP, but detailed wire-level behavior, framing, and defaults are specific to IBM's implementation; do not assume a generic protocol merely from the port number.

Security Information

exposure of :3494

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

system averages 2.7 across 916 ports — this one sits 0.7 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Treat this as a management interface for storage equipment: keep it on a trusted storage network and allow access only from the hosts that need to control the library. It is not encrypted by default, and public exposure is unwarranted; the rarity of the service does not make an exposed library manager safe.

Record

iana registry entry

port: :3494
service: IBM 3494 Tape Library Manager
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: System
usage: This port is associated with the IBM 3494 automated tape library's library-manager interface, used by backup or host systems to control library operations. Engineers are most likely to encounter it on an internal storage or backup network, not on a public-facing server.
lookups: 0rank 993
added: 2026-09-30
updated: 2026-09-30
references: IANA service name registry — port 3494

Something wrong?

This record is maintained by the engineers who use port 3494. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-30.

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :3494IBM 3494 Tape Library Manager

Technical Details

Security Information

Related Ports

Port 3494IBM 3494 Tape Library Manager